Note 16 - Lines of Credit and Total Debt Obligations (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Schedule of Debt [Table Text Block]

	December 31,
	2014		2013
	(Dollars in thousands)
5⅜% Senior Notes due December 2014, net	$	-	$	249,814
5⅜% Senior Notes due July 2015, net		-		249,935
5⅝% Senior Notes due February 2020, net		246,450		245,871
5½% Senior Notes due January 2024		250,000		-
6% Senior Notes due January 2043		350,000		350,000
Total	$	846,450	$	1,095,620